Home / 18,258.20-27,390.32-6,408.89

Finding the Fourth Proportional to 18,258.20, 27,390.32 and 6,408.89

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Solution

The fourth proportional to 18,258.20, 27,390.32 and 6,408.89 is: 9,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.20 : 27,390.32 = 6,408.89 : x
  2. Step 2: Convert to fraction form
    18,258.20/27,390.32 = 6,408.89/x
  3. Step 3: Cross multiply
    18,258.20x = 27,390.32 × 6,408.89
  4. Step 4: Simplify right side
    18,258.20x = 175,541,663.66
  5. Step 5: Solve for x
    x = 175,541,663.66/18,258.20
  6. Step 6: Final answer
    x = 9,614.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.